Yes there are..................lots of them.
1. New, custom built ones.
2. Ones installed with interactive scanning turned off.
3. Legitimate commercial ones.
4. Ones installed in places that the AV and AS programs ignore.
No anti-malware is 100% bulletproof and futureproof. When it comes to new stuff they mostly don't get above 80% and many do worse than that:eek:
If you let people onto your system with administrative rights......................